For me, Leica M4-P. It and the C-V 40mm f/1.4 are my "dream kit"... or would be, if I were still interested in shooting film.

Ugliest I'd say it's the NEX-derived Hasselblad Lunar, but I've heard from very trustworthy people that it handles like a dream. Perhaps the Zenit 12xp? that thing certainly handled like the clumsy brick it looked like, particularly with its 'kit lens', that attrocity known as the Helios 44-2.